Katy Perry, Taylor Swift, Nicki Minaj and More React to Terror Attack at Ariana Grande Concert

The world is mourning after a horrific terrorist attack occurred shortly after an Ariana Grande concert in Manchester, England, on Monday night, leaving 22 dead and 59 injured.

Emergency services were called to Manchester Arena after concertgoers heard an explosion within the foyer area of the stadium at 10:30 p.m. local time, shortly after Grande had finished her concert. According to the Associated Press, ISIS has claimed responsibility for the suicide bombing.

Ariana is confirmed to be unharmed but is said to be in “hysterics” after the incident.

“Ariana is okay. We are further investigating what happened,” her rep told E! News in a statement.

She later tweeted out, “broken. from the bottom of my heart, i am so so sorry. i don’t have words.”

Several celebrities have also taken to social media to share their condolences to the victims of the attack, and to their peer, Ariana.

See some of their heartfelt messages below: